Abstract: A method for coating or lining metal surfaces, such as car or truck bodies, by applying plural layers of a pre-mixed, defined rubber composition and allowing the rubber coating to cure in situ.

Abstract: A sodium chloride or potassium chloride laser window is rendered anti-reftive by depositing, in order, an As.sub.2 Se.sub.3 layer, a NaF layer and an As.sub.2 Se.sub.3 layer. Near optimum thicknesses to permit transmission of light having wavelengths in the range of from 1 to 12 micrometers are disclosed.

Abstract: A process for making thin film resistor terminals is described. Terminal fabrication is accomplished by the steps of chemical plating onto the terminal forming surfaces of the resistor and thereafter heat treating between 300.degree. and 800.degree. C in the vacuum, non-oxidation gas or non-oxidation atmosphere or in the air, oxidation gas or oxidation atmosphere. The chemical plating is of nickel, cobalt or nickel-cobalt alloy.

Abstract: Disclosed is a novel pressure sensitive adhesive drafting film which is specially formulated to permit it to be imaged in electrostatographic copiers. The film is a multilayered structure comprising layers from the top down of:(a) a matte coating capable of receiving and holding graphic information;(b) a layer of organic resinous material in film form;(c) a layer of pressure sensitive adhesive;(d) a release coating;(e) a layer of an organic resinous material in film form as release liner; and(f) a back coating which is a layer of an organic resinous binder material having dispersed therein:I. a particulate solid material of particle size ranging from 3 to 20 microns in the longest dimension, andIi. a water insoluble antistatic agent of a type to cause the film to have a surface resistivity in the range of from 10.sup.9 to 10.sup.14 ohms/sq.

Abstract: A method for manufacturing a fluorescent screen of a color picture tube by the steps of forming a coating of opto-hardening material on the inner surface of the faceplate of the panel of a color picture tube and exposing to a light and hardening selectively the coating thereby to form a matrix of stripes of the opto-hardening material, in which the selective exposure is performed by projecting a light derived from a light source having a predetermined width from each of at least two positions which are separated from the inner surface of the faceplate by a predetermined distance and also separated from each other onto the coating of the opto-hardening material formed on the faceplate through a slot of a predetermined width of a mask located between the inner surface of the faceplate and the light source, whereby the width of the stripe changes little even when the luminous intensity of the light source changes.

Abstract: Anodized aluminium having an anodic oxide film of at least 3 microns thickness is colored by electrolytically depositing inorganic pigment from metallic salt solutions, particularly nickel, cobalt, tin and copper salts and mixtures. The pigment deposits are characterized by outer ends of an average size in excess of 260 A lying at a distance of 500 - 3000 A from the aluminium/aluminium oxide interface.In a preferred method of production the anodic oxide coating is formed under conventional anodizing conditions in a sulphuric acid-based electrolyte. The anodized aluminium is then treated in phosphoric acid at a voltage of 8 - 50 volts to enlarge the pores to above 260 A in a region at the base of the pores adjacent the barrier layer. The pigment is then deposited in the pores to the specified depth and interesting new color shades are obtained as a result of optical interference due to the presence of the large size shallow inorganic pigment deposits.

Abstract: A heat printing sheet having a pattern of a hot melt ink composition on a base, the improvement comprising using a hot melt ink composition which comprises 5-60 wt. parts of a base polymer of ethylene-vinyl acetate copolymer having 5-50 wt. % of the vinyl acetate content and 4-1000 g/10 min. of a melt index or a mixture of said ethylene-vinyl acetate substituted with 10-60 wt. % of the other polymer; and 20-80 wt. parts of a tackifier selected from terpene resins, hydrogenated dicyclopentadiene resins, lower styrene resins, rosins, rosin polyol esters, hydrogenated rosin and rosin polyol esters and alicyclic hydrocarbon resins and 0.1-30 wt. parts of a pigment or dye, and the hot melt ink composition is melted at 80.degree.-250.degree. C and is coated on an engraved roll and is instantaneously printed on a base of synthetic polymer film having 10-100 of a thickness and smooth surface under 0.5-10 Kg/cm.sup.2 (gauge) to form the pattern of the hot melt ink composition having 10-3000 of a thickness.

Abstract: Metal/metal oxide coated articles having selective reflectance and transmittance of radiation over an extended spectral range are provided by a combination of at least three coating layers: one being substantially copper, one being substantially copper oxide and one being substantially nickel disposed between the copper coating layer and the copper oxide coating. Chemical or electroless plating techniques are disclosed for the production of such articles.

Abstract: An integrally sintered ceramic complex which is suitable for use as a substrate of a surface acoustic wave device and can effectively reduce unnecessary ultrasonic waves.The method of manufacturing the integrally sintered ceramic complex is also disclosed.The disclosed ceramic complex comprises a first ceramic portion made of densely sintered piezoelectric ceramic material and a second ceramic portion made of porously sintered ceramic material. Both the ceramic portions are sintered integrally, and the second portion surrounds the first portion.The operating area of the surface acoustic wave device is formed on the surface of the first ceramic portion.

Abstract: The invention concerns mineral carriers carrying modified silicon grafts. They comprise mineral carriers grafted by silicon derivatives with aromatic amino substituents, modified by substituted or unsubstituted adenine radicals. The carriers are used in chromatography and more particularly in affinity chromatography for the purification of enzymes.

Abstract: A transparent electroconductive window comprising an assembly element supporting a circuit portion electrically coupled to a novel self-soldering bus bar consisting essentially of particles of a finely divided highly electroconductive metal, such as silver, dispersed within a metal alloy having a fusion point between about 70.degree. C. and about 150.degree. C. A mixture of finely divided metal and of said alloy is applied to an assembly element along one or more lines in electrical contact with an electroconductive heating element carried by said assembly element. The one assembly element is assembled with other assembly elements to form a sandwich that is laminated at a temperature higher than the fusion point of the metal alloy to form a transparent electroconductive window having highly conductive, self-soldering bus bars formed along said lines.

Abstract: Transfers to be applied to ceramic or like materials normally need to be squeegeed vigorously on application to avoid trapping of air or water behind the pattern. This necessity is avoided according to the invention by providing a transfer comprising a base having a surface of soluble adhesive onto an area of which is printed a pattern of one or more glazes, colors or pigments, the pattern area being covered by a consumable cover coat, in which the cover coat is coherent but is provided with a configuration of small apertures over substantially the whole of the pattern area.

Abstract: Disclosed is a method of forming dense protective coatings of co-deposited aluminum oxide and titanium oxide on wear surfaces. The coating is formed by simultaneously reacting an aluminum halide gas and a titanium halide gas with water vapor on a surface maintained at a temperature of about 900.degree. C to about 1250.degree. C. Reaction conditions are maintained to assure mixing of the titanium halide gas with the other reactants only in the reaction zone and compositions of the reactant gases are limited to produce a coating comprising alpha alumina (Al.sub.2 O.sub.3) with about 2% to about 10% hexagonal alpha titanium oxide (Ti.sub.2 O.sub.3) dispersed in the alumina matrix.

Abstract: A toner for developing electrostatic images which contains a particular addition condensate and a colorant wherein said addition condensate is present in an amount of from 1 to 100 parts by weight and said colorant in an amount of from 1 to 10 parts by weight of said toner.

Abstract: A composite article comprises a core of a phosphor particle having a light modifying layer thereon. The light modifying layer is comprised of a co-precipitated mixture of a free-flowing agent such as silica or pyrophosphate and a pigment which modifies the light output of the energized phosphor. Also disclosed is a method of making the composite article which comprises the steps of preparing an aqueous mixture of particles of phosphor, particles of a pigment and a positively charged colloidal silica or pyrophosphate and mixing thoroughly. After mixing, a base, in the case of silica, or a salt which will form an insoluble pyrophosphate in the case of the pyrophosphate, is added thereto in sufficient amount to gel the mixture causing the silica or pyrophosphate and the pigment to co-precipitate upon and coat the phosphor particles. After the coating operation the supernatant liquid is removed and the coated phosphor is dried.

Abstract: Microwave absorber comprising a mixture of ferrite powder having particle size of less than 1.65 mm and an organic high molecular weight compound.

Abstract: Soiled hot end coated glassware having a substantially colorless and transparent thin protective coating thereon including an organic coating material is washed in an inhibited aqueous caustic soda cleaning solution to inhibit the deleterious effects of repeated washings and thereby increase the effective life of the protective coating. The cleaning solution comprises on a weight basis from 0.3 percent to 6 percent of caustic soda, from 0.01 percent to 0.3 percent of at least one soluble zinc containing compound when calculated as zinc oxide, and the remainder water. Other ingredients which may be present include from 0.002 percent to 0.05 percent of a synthetic organic phosphate ester anionic surfactant having hydrotrophic properties, from 0.001 percent to 0.03 percent of a low foaming synthetic alkoxylated nonionic surfactant, and from 0.008 percent to 0.2 percent of a hard water conditioning sequesterant.

Abstract: A superconductive element comprising a substrate, at least one face of which is composed of alumina, and a layer of a superconductive compound of the Nb-Al, Nb-Ga, Nb-Al-Ge or Nb-Ga-Al system formed on the alumina face, which exhibits an excellent critical current density in either a low magnetic field or a high magnetic field and simultaneously has a high critical temperature, and in which peeling or cracking is not caused, and a method for preparing such superconductive element comprising the step of vaccum depositing the above-noted superconductive compound on an alumina surface of a substrate.

Abstract: A protective covering for a fiberglass boom is disclosed. The present invention is particularly useful on the fiberglass boom used on aerial lift trucks used by electrical utilities and for other similar applications. The covering includes a polyurethane coating applied to the surface of the fiberglass boom. Polyurethane strip material is spirally wrapped over the polyurethane coating and bound to the polyurethane coating by the use of a solvent sealer, preferably tetrahydrofuran. A second polyurethane coating may be applied over the polyurethane strip material. The protective covering of the present invention provides resistance to abrasion, weather resistance, and maintains the dielectric strength of the boom. Furthermore, the coating is transparent, allowing inspection for cracks developing in the underlying fiberglass boom.

Abstract: Novel copper-silver metallic films are prepared on transparent articles by chemical replacement of silver for copper according to the method of the present invention. A transparent article is coated with a metallic copper film by a conventional method of deposition. The copper coated article is then contacted by a solution comprising a silver salt, ammonia and a complexing agent which promotes replacement but which does not accelerate the oxidation of residual metallic copper in the film. Replacement of copper by silver occurs with the film retaining its reflective metallic character.